Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Consider the event-controlled loop in the code fragment above and the eight counter-controlled loops beneath it. Which of these counter-controlled loops will perform precisely the same operations as the event-controlled loop? This question is internally recognized as variant 221.
 

Q.1

 
fragment 1 contains the correct code
 
fragment 2 contains the correct code
 
fragment 3 contains the correct code
 
fragment 4 contains the correct code
 
fragment 5 contains the correct code
 
fragment 6 contains the correct code
 
fragment 7 contains the correct code
 
fragment 8 contains the correct code
 
none of the above
foo = 0
while (foo <= 840):
xyz (foo)
foo += 3
# code fragment 1 starts on the next line
for foo in range (841, 3):
xyz (foo)
# code fragment 2 starts on the next line
for foo in range (0, 841, 3):
xyz (foo)
# code fragment 3 starts on the next line
for foo in range (0, 841, 4):
xyz (foo)
# code fragment 4 starts on the next line
for foo in range (841, 4):
xyz (foo)
# code fragment 5 starts on the next line
for foo in range (840, 4):
xyz (foo)
# code fragment 6 starts on the next line
for foo in range (0, 840, 4):
xyz (foo)
# code fragment 7 starts on the next line
for foo in range (0, 840, 3):
xyz (foo)
# code fragment 8 starts on the next line
for foo in range (840, 3):
xyz (foo)
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Transcribed Image Text:foo = 0 while (foo <= 840): xyz (foo) foo += 3 # code fragment 1 starts on the next line for foo in range (841, 3): xyz (foo) # code fragment 2 starts on the next line for foo in range (0, 841, 3): xyz (foo) # code fragment 3 starts on the next line for foo in range (0, 841, 4): xyz (foo) # code fragment 4 starts on the next line for foo in range (841, 4): xyz (foo) # code fragment 5 starts on the next line for foo in range (840, 4): xyz (foo) # code fragment 6 starts on the next line for foo in range (0, 840, 4): xyz (foo) # code fragment 7 starts on the next line for foo in range (0, 840, 3): xyz (foo) # code fragment 8 starts on the next line for foo in range (840, 3): xyz (foo)
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